Double-head infusion apparatus for hepatobiliary department

Abstract

The utility model discloses a hepatobiliary double-headed infusion apparatus, which relates to the technical field of medical infusion apparatuses, and comprises a first liquid inlet tube, a second liquid inlet tube, a conduit, two temporary storage buckets, a first liquid inlet tube, a second liquid inlet tube, a second liquid inlet tube, a second liquid inlet tube, a second liquid inlet tube, a third liquid inlet tube and a fourth liquid inlet tube, the two temporary storage hoppers are respectively communicated with the first liquid inlet pipe and the second liquid inlet pipe; the detection assembly is mounted on the outer surfaces of the dripping bucket and the temporary storage bucket, and the detection mechanism is used for detecting liquid level changes in the dripping bucket and the temporary storage bucket; and the control mechanism is arranged above the temporary storage hopper, and the control mechanism comprises a control assembly and a stopping assembly. Through the arrangement of the detection assembly and the control mechanism, after one bottle of liquid medicine is completely infused, another bottle of liquid medicine can be automatically infused for a patient, and therefore the problem that the infusion bottle cannot be replaced in time when the patient lacks action force and is unattended is solved.

Description

Technical Field

[0001] This utility model relates to the field of medical infusion set technology, specifically a dual-head infusion set for hepatobiliary diseases. Background Technology

[0002] A dual-port infusion set consists of two infusion connectors and a medical tubing. It can connect to two different fluids simultaneously, or connect to one infusion set and one medicine bottle at the same time. Dual-port infusion sets allow patients to avoid frequent changes of infusion sets when multiple medications are needed at the same time, reducing hospital waste costs and improving patients' quality of life.

[0003] The patent with publication number CN213526805U proposes a dual-head infusion set. When the infusion volume is reduced to zero, the solenoid valve clamps the infusion tube to stop the flow of the medicine and sounds an alarm. This allows medical staff and patients to relax and rest more without having to pay too much attention to the infusion situation.

[0004] However, after the alarm is triggered by the dual-headed infusion set, which is used when the first IV drip is finished, if the patient is unable to move and the caregiver cannot arrive in time, the patient's blood will flow back into the catheter, causing pain to the patient and making it inconvenient to use. Utility Model Content

[0005] This invention provides a dual-head infusion set for hepatobiliary diseases, which has the advantage of automatically infusing another bottle of medicine into the patient after one bottle of medicine has been finished, thus solving the problems mentioned in the background art.

[0006] To achieve the goal of automatically administering another bottle of medication to the patient after one bottle is finished, this utility model provides the following technical solution: a dual-headed infusion set for hepatobiliary diseases, comprising a first inlet tube, a second inlet tube, and a conduit, wherein the first inlet tube, the second inlet tube, and the conduit are connected by a three-way connector, and a drip chamber is connected to the conduit; further comprising: two temporary storage chambers, each connected to the first inlet tube and the second inlet tube respectively; a detection component, wherein a detection mechanism is installed on the outer surface of the drip chamber and the temporary storage chamber, and the detection mechanism is used to detect changes in the liquid level in the drip chamber and the temporary storage chamber; and a control mechanism, wherein the control mechanism is located on... Above the temporary storage hopper, the control mechanism includes a control component and a stop-stop component, both of which are mounted on a control box. The stop-stop component has two states: stop and open, to block or prevent the flow of medicine in the first or second inlet pipe. The control component is used to switch the state of the stop-stop component from the stop state to the open state. The main control unit is located inside the control box, and the control mechanism and detection component are electrically connected to the main control unit. When the detection component detects a change in the liquid level in the dripping hopper and the temporary storage hopper, the main control unit drives the control mechanism to switch the stop-stop component to the open state.

[0007] As a preferred embodiment of the present invention, the detection component includes a first liquid level sensor and a second liquid level sensor. The first liquid level sensor is installed on the outer surface of the temporary storage hopper located on the first liquid inlet pipe, and the second liquid level sensor is installed on the outer surface of the temporary storage hopper located on the second liquid inlet pipe. The detection component also includes a third liquid level sensor installed on the outer surface of the dripping hopper.

[0008] As a preferred embodiment of this utility model, the temporary storage hopper is provided with a rinsing pipe, and a liquid storage bag is provided above the temporary storage hopper. The rinsing pipe and the liquid storage bag are connected by a connecting hose. The connecting hose is provided with a solenoid valve, which is electrically connected to the main control unit. The solenoid valve is used to control the opening or closing of the connecting hose.

[0009] As a preferred embodiment of this utility model, the control component includes a guide rod vertically disposed within a control box, a support plate slidably disposed on the guide rod, a spring disposed between the support plate and the bottom surface of the inner wall of the control box, the spring being sleeved on the outer circumferential surface of the guide rod; a locking component is fixedly disposed on the surface of the guide rod away from the spring, at least one locking component; a lower electromagnet is fixedly disposed on the surface of the guide rod away from the spring, and an upper electromagnet is fixedly disposed on the top surface of the inner wall of the control box, both the upper and lower electromagnets being electrically connected to the control unit, and the upper and lower electromagnets being able to attract or repel each other after being energized.

[0010] As a preferred embodiment of this utility model, the control box has an opening on its surface near the first and second inlet pipes, the opening being located on the side away from the upper electromagnet in height; the control box has insertion holes on its surface on the same side as the opening, the position and number of the insertion holes corresponding one-to-one with the locking components; the stop assembly is installed inside the opening, the stop assembly including: a sliding shaft, with bosses fixed at both ends of the sliding shaft, and sliding grooves on both the upper and lower sides of the opening, the bosses sliding within the sliding grooves; and a constraint block. The constraint block is rotatably mounted on the outer circumferential surface of the sliding shaft, and the constraint block has a constraint hole; the stop clamp is "U" shaped, and the first liquid inlet pipe or the second liquid inlet pipe is located in the recess of the stop clamp. The stop clamp has a sliding end and an insertion end, and there is a height difference between the sliding end and the insertion end. The sliding end of the stop clamp slides in the constraint hole, and the insertion end of the stop clamp can enter the insertion hole and be limited by the locking member to block the flow of medicine in the first liquid inlet pipe or the second liquid inlet pipe. At this time, the stop assembly is in the stop state.

[0011] As a preferred technical solution of this utility model, the control component further includes a spring sheet fixed inside the control box. The position and number of the spring sheets correspond one-to-one with the locking components, so that when the stop-break component is in the stop-break state, the insertion end of the stop-break clamp contacts the spring sheet and is subjected to the force of the spring sheet.

[0012] As a preferred embodiment of this utility model, the control mechanism is symmetrically arranged within the control box.

[0013] Compared with the prior art, this utility model provides a dual-head infusion set for hepatobiliary diseases, which has the following features:

[0014] Beneficial effects:

[0015] 1. This dual-head infusion set for hepatobiliary diseases features a temporary storage container on the first and second infusion pipes, with a detection component monitoring changes in the liquid level within the container. Through the coordination of a control mechanism, it automatically infuses another bottle of medication into the patient after one bottle is finished, thus avoiding the problem of not being able to change the IV drip in time when the patient is immobile and unattended.

[0016] 2. This dual-headed infusion set for hepatobiliary use features an opening and a groove on the control box, allowing the stop-stop component to slide within the opening. Multiple insertion holes and locking mechanisms ensure that the stop-stop clamp can block either the first or second infusion tube at different positions on the groove. This adapts to changes in the distance between the first and second infusion tubes, facilitating use.

[0017] 3. This dual-head infusion set for hepatobiliary use features a flushing tube installed on the temporary storage container, along with a matching reservoir bag and connecting hose. The connecting hose is equipped with a solenoid valve. When the solenoid valve is open, the flushing fluid flows from the reservoir bag into the flushing tube through the connecting hose under the influence of gravity, and then flows into the tubing, thereby diluting any residual medication in the tubing. This eliminates the need for manual cleaning of residual medication in the tubing when using different medications. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a front view of the present utility model;

[0020] Figure 3 This is a schematic diagram showing the connection between the liquid storage bag and the temporary storage container of this utility model;

[0021] Figure 4 This is a schematic diagram showing the positions of the control box, the first liquid inlet pipe, and the second liquid inlet pipe of this utility model.

[0022] Figure 5 This is a schematic diagram of the internal structure of the control box of this utility model;

[0023] Figure 6 This is a top view of the stop-break component and control component of this utility model;

[0024] Figure 7 This is a front view of the internal structure of the control box of this utility model;

[0025] Figure 8 This is a schematic diagram of the control component structure of this utility model;

[0026] Figure 9 This is a diagram showing the relationship between the circuit breaker assembly and the control box of this utility model.

[0027] Figure 10 This is a schematic diagram of the structure of the stop component of this utility model;

[0028] Figure 11 This is a schematic diagram of the sliding shaft and constraint block structure of this utility model.

[0029] In the diagram: 1. First inlet pipe; 2. Second inlet pipe; 3. Guide tube; 4. T-connector; 5. Drip funnel; 6. Adjusting clamp; 7. Filter; 8. Needle; 9. First puncture needle; 10. Second puncture needle; 11. Air inlet; 12. Temporary storage hopper; 121. Flushing pipe; 13. Control box; 131. Opening; 132. Slide groove; 133. Insertion hole; 14. Stop clamp; 141. Stop block; 15. Support plate; 16. Guide rod; 17. Spring; 18. Locking piece; 19. Spring piece; 20. Constraint block; 201. Constraint hole; 21. Sliding shaft; 211. Boss; 22. Upper electromagnet; 23. Lower electromagnet; 24. Fixing sleeve; 25. First liquid level sensor; 26. Second liquid level sensor; 27. Third liquid level sensor; 28. Storage bag; 29. ​​Connecting hose; 30. Solenoid valve. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Please see Figure 1 - Figure 5 This utility model discloses a dual-headed infusion set for hepatobiliary surgery, including a first inlet tube 1, a second inlet tube 2, and a conduit 3. In the prior art, a first puncture needle 9 is provided at one end of the first inlet tube 1, and a second puncture needle 10 is provided at one end of the second inlet tube 2. The first puncture needle 9 and the second puncture needle 10 are used to insert into different IV bottles. An air inlet 11 is also provided on one side of the first puncture needle 9 and the second puncture needle 10. The air inlet 11 is used to balance the air pressure in the tube. The first inlet tube 1, the second inlet tube 2, and the conduit 3 are connected by a three-way tube 4, so that the medicine in different IV bottles can be introduced into the conduit 3. A drip chamber 5, an adjusting clamp 6, a pot filter 7, and a needle 8 are also provided on the conduit 3 in sequence. These technical features have mature applications in the prior art and will not be described in detail here.

[0032] In this solution, the dual-head infusion set for hepatobiliary diseases also includes a temporary storage tank 12. There are two temporary storage tanks 12, and the two temporary storage tanks 12 are respectively connected to the first inlet pipe 1 and the second inlet pipe 2, so that when the medicine passes through the temporary storage tank 12, it can form a liquid column with a height in the temporary storage tank 12.

[0033] In addition, a detection component is provided, which is installed on the outer surface of the dripping bucket 5 and the temporary storage bucket 12. The detection mechanism is used to detect the changes in liquid level in the dripping bucket 5 and the temporary storage bucket 12, that is, to detect the changes in the height of the liquid column in the dripping bucket 5 and the temporary storage bucket 12.

[0034] Furthermore, a control mechanism is provided, located above the temporary storage hopper 12. The control mechanism includes a control component and a stop component, both of which are mounted on the control box 13. The stop component has two states: stop and open. When the stop component is in the stop state, it can block the flow of the liquid in the first inlet pipe 1 or the second inlet pipe 2. When the stop component is in the open state, it can allow the liquid in the first inlet pipe 1 or the second inlet pipe 2 to flow. The control component is used to switch the state of the stop component, causing it to switch from the stop state to the open state.

[0035] Furthermore, a main control unit is provided, located within the control box 13. The control mechanism and detection components are electrically connected to the main control unit. The main control unit receives signals from the detection components and drives the control mechanism to operate according to the signals, thereby switching the stop component to the open state. An example is provided below: when the medication in the IV bottle connected to the first inlet pipe 1 is finished, the liquid level in the corresponding temporary storage container 12 gradually decreases. Subsequently, the liquid level in the dripping container 5 gradually decreases. When the decrease in the liquid level in the temporary storage container 12 is detected, the liquid level in the dripping container 5 is detected. When the liquid level in the dripping container 5 begins to decrease, the control mechanism is driven, causing the stop component acting on the second inlet pipe 2 to switch from the stop state to the open state, thus starting the delivery of medication from the IV bottle connected to the second inlet pipe 2. This allows for automatic delivery of another IV bottle to the patient after one bottle of medication is finished, thus avoiding the problem of not being able to change the IV bottle in time when the patient lacks mobility and is unattended.

[0036] In this implementation plan, the control mechanism is integrated into the control box 13. Each hospital bed is equipped with one set, which can be disassembled and reassembled as needed and can be reused repeatedly. When in use, it can be directly hung on the hook for IV drips, which is convenient to use. The power supply can be provided by the built-in battery, or by an external plug, or a combination of both.

[0037] Combination Figure 1 - Figure 4 The aforementioned detection assembly includes a first liquid level sensor 25 and a second liquid level sensor 26. The first liquid level sensor 25 is installed on the outer surface of the temporary storage hopper 12 located on the first liquid inlet pipe 1 and is used to detect the liquid level of the temporary storage hopper 12 connected to the first liquid inlet pipe 1. The second liquid level sensor 26 is installed on the outer surface of the temporary storage hopper 12 located on the second liquid inlet pipe 2 and is used to detect the liquid level of the temporary storage hopper 12 connected to the second liquid inlet pipe 2. The detection assembly also includes a third liquid level sensor 27 installed on the outer surface of the dripping hopper 5 and is used to detect the liquid level of the dripping hopper 5. The sensor type is a non-contact liquid level sensor and is fixed to the outer peripheral surface of the temporary storage hopper 12 and the dripping hopper 5 by clamping, which is convenient for disassembly and assembly and for use.

[0038] Optionally, an alarm device can also be installed in the control box 13. The alarm device is electrically connected to the control unit. If the first inlet pipe 1 infuses the fluid first and the second inlet pipe 2 infuses the fluid later, when the second liquid level sensor 26 detects that the liquid level in the corresponding temporary storage tank 12 has dropped, the alarm device will be activated to send an alarm signal, thereby reminding others that the infusion is about to be completed.

[0039] Combination Figure 3 Some different drug solutions may react when mixed in vitro. To avoid this, a flushing tube 121 is provided in the temporary storage container 12. The flushing tube 121 is closed when there is no external pressure to prevent outside air from entering the tube. A storage bag 28 is provided above the temporary storage container 12. The storage bag 28 stores flushing liquid, which can be physiological saline or glucose solution. The flushing tube 121 and the storage bag 28 are connected by a connecting hose 29. A solenoid valve 30 is provided in the connecting hose 29. The solenoid valve 30 is electrically connected to the main control unit. The solenoid valve 30 is used to control the opening or closing of the connecting hose 29. When the solenoid valve 30 is open, the flushing liquid flows from the storage bag 28 into the flushing tube 121 through the connecting hose 29 under the action of gravity, and then flows into the conduit 3, thereby diluting the residual drug solution in the tube.

[0040] The flushing can be done quantitatively or at a time. For quantitative flushing, a certain amount of flushing liquid is stored in the storage bag 28, and the flushing is completed when it is used up. For timed flushing, an excess of flushing liquid is stored in the storage bag 28, the solenoid valve 30 is opened for a certain period of time, and the valve is closed after the flushing is completed. Both methods can be controlled by the main control unit without the need for manual control or supervision.

[0041] The specific process described above is as follows: the third liquid level sensor 27 detects a drop in the liquid level in the dripping bucket 5, the main control unit controls the solenoid valve 30 to open, and the flushing liquid enters the corresponding temporary storage bucket 12. After flushing is completed, the third liquid level sensor 27 detects a drop in the liquid level in the dripping bucket 5 again, and then drives the control component to turn the stop component into the open state, and starts to deliver the next bottle of IV fluid.

[0042] Combination Figure 5 - Figure 8 The aforementioned control components include a guide rod 16 vertically disposed within the control box 13, a support plate 15 slidably disposed on the guide rod 16, and multiple guide rods 16 may be provided to maintain the stable movement of the support plate 15. A spring 17 is provided between the support plate 15 and the bottom surface of the inner wall of the control box 13, and the spring 17 is sleeved on the outer circumferential surface of the guide rod 16. The spring 17 always applies a force to the support plate 15, so that the support plate 15 is at the highest point of the guide rod 16. Correspondingly, a retaining ring needs to be provided at the highest point of the guide rod 16 to prevent the support plate 15 from falling off the guide rod 16.

[0043] Furthermore, a locking member 18 is fixed on the surface of the guide rod 16 away from the spring 17. At least one locking member 18 is provided. The locking member 18 is used to restrict the position of the stop assembly so that the stop assembly is always in the stop state.

[0044] In addition, a lower electromagnet 23 is fixed on the surface of the guide rod 16 away from the spring 17, and an upper electromagnet 22 is fixed on the top surface of the inner wall of the control box 13. Both the upper electromagnet 22 and the lower electromagnet 23 are electrically connected to the main control unit and are controlled by the main control unit to be energized and de-energized. In order to make the positions of the upper electromagnet 22 and the lower electromagnet 23 as close as possible to increase the force between them, a fixing sleeve 24 can be fixed on the top surface of the inner wall of the control box 13, and the upper electromagnet 22 is installed at the bottom end of the fixing sleeve 24. The fixing sleeve 24 compensates for the distance between the two electromagnets. The upper electromagnet 22 and the lower electromagnet 23 can attract or repel each other after being energized. When the upper electromagnet 22 and the lower electromagnet 23 repel each other after being energized, they will push the support plate 15 to move downward against the force of the spring 17, thereby causing the position of the locking member 18 to drop, and thus releasing the restriction on the position of the stop component.

[0045] Combination Figure 5 , Figure 6 and Figure 9 To facilitate the installation of the shut-off assembly, an opening 131 is provided on the surface of the control box 13 near the first liquid inlet pipe 1 and the second liquid inlet pipe 2. The opening 131 is located on the side away from the upper electromagnet 22 in terms of height. The shut-off assembly is slidably installed in the opening 131. An insertion hole 133 is provided on the surface of the control box 13 on the same side as the opening 131. The position and number of the insertion holes 133 correspond one-to-one with the locking member 18.

[0046] Combination Figure 9 - Figure 11 The aforementioned stop assembly includes a sliding shaft 21, with bosses 211 fixed at both ends of the sliding shaft 21. Preferably, the bosses 211 are quadrilateral, and grooves 132 are provided on both the upper and lower sides of the opening 131. The bosses 211 slide within the grooves 132, thereby allowing the sliding shaft 21 to slide along the grooves 132.

[0047] Furthermore, a constraint block 20 is rotatably provided on the outer peripheral surface of the sliding shaft 21, and a constraint hole 201 is provided on the constraint block 20.

[0048] Additionally, a circuit breaker clamp 14 is provided. The circuit breaker clamp 14 is "U"-shaped and has a sliding end and an insertion end, with a height difference between the sliding end and the insertion end. This allows the sliding end of the circuit breaker clamp 14 to be mounted on the constraint block 20 located on the lower side of the control box 13, and the sliding end of the circuit breaker clamp 14 to slide within the constraint hole 201. To prevent the circuit breaker clamp 14 from detaching from the constraint hole 201, a stop block 141 can be fixed at the tail of the sliding end. The insertion end of the circuit breaker clamp 14 can enter the insertion hole 133 located on the upper side of the control box 13 and be locked in place. When using the limiting component 18, the first liquid inlet tube 1 or the second liquid inlet tube 2 is placed into the recess of the stop clamp 14. Then, the stop clamp 14 is rotated so that the insertion end enters the insertion hole 133, thereby surrounding the liquid inlet tube between the outer surface of the control box 13 and the stop clamp 14. Then, the stop clamp 14 is pushed into the insertion hole 133. During this process, the sliding end slides in the constraint hole 201 and the insertion end slides in the insertion hole 133 until the insertion end is limited by the locking component 18. At this time, the stop clamp 14 is in the stop state and blocks the liquid inlet tube.

[0049] When intravenous infusion is required, such as Figure 7 As shown, the main control unit energizes the upper electromagnet 22 and the lower electromagnet 23, causing them to repel each other. This causes the support plate 15 to move downward against the force of the spring 17, thereby lowering the position of the locking member 18 and releasing the restriction on the position of the stop assembly.

[0050] In this embodiment, multiple locking elements 18 and insertion holes 133 can be provided, so that the stop clamp 14 can block the first liquid inlet pipe 1 or the second liquid inlet pipe 2 at different positions of the slide groove 132. This allows it to adapt to changes in the distance between the first liquid inlet pipe 1 and the second liquid inlet pipe 2, facilitating use.

[0051] Combination Figure 5 - Figure 7 In order to ensure that the stop clamp 14 can fully disengage from the inlet pipe when the stop assembly changes from the stop state to the open state, the control assembly also includes a spring 19 fixed inside the control box 13. The position and number of the spring 19 correspond one-to-one with the locking member 18, so that when the stop assembly is in the stop state, the insertion end of the stop clamp 14 contacts the spring 19 and is subjected to the force of the spring 19, so that after the stop clamp 14 disengages from the locking member 18, it can be ejected outward under the combined tension of the spring 19 and the inlet pipe.

[0052] Combination Figure 5 - Figure 8In this solution, the control mechanism is symmetrically arranged in the control box 13, that is, the control component and the stop component are symmetrically arranged in the control box 13. At this time, both control components can be controlled by the main control unit independently, which makes it easy for the two stop components to work independently. Users can freely choose to use one or both stop components to increase the convenience of use.

[0053] The working principle and usage process of this utility model are as follows: When in use, the first inlet tube 1 (infusion first) and the second inlet tube 2 (infusion later) are respectively placed into the recesses of the two stop clamps 14. Then, the insertion end of the stop clamp 14 placed in the second inlet tube 2 is aligned and inserted into the insertion hole 133, so that the insertion end is limited by the locking member 18. Then, the detection component is clamped onto the two temporary storage buckets 12 and the drip bucket 5 respectively. Then, the connecting hose 29 is connected to the flushing tube 121.

[0054] When the medication in the first IV drip is used up, the detection component detects a drop in the liquid level in the temporary storage container 12 and the drip container 5. The solenoid valve 30 opens, allowing flushing liquid to flow from the storage bag 28 into the flushing tube 121 through the connecting hose 29. When the detection component detects a drop in the liquid level in the drip container 5 again, the upper electromagnet 22 and the lower electromagnet 23 are energized and repel each other, causing the position of the locking member 18 to drop. This releases the restriction on the position of the stop-stop component, and the stop-stop clamp 14 pops outward under the action of the spring 19. At this time, the medication in the next IV drip flows into the conduit 3 through the second inlet tube 2.

[0055] In summary, this dual-headed infusion set for hepatobiliary surgery, by setting a temporary storage hopper 12 on the first inlet pipe 1 and the second inlet pipe 2, and setting a detection component to monitor the changes in the liquid level in the temporary storage hopper 12, and through the cooperation of the control mechanism, can automatically infuse another bottle of IV fluid into the patient after one bottle of medicine is finished, thereby avoiding the problem of not being able to change the IV bag in time when the patient is immobile and unattended. By opening an opening 131 and a sliding groove 132 on the control box 13, the stop-stop component can slide within the opening 131, and with the cooperation of multiple insertion holes 133 and locking parts 18, the stop-stop clamp 14 can be positioned at different positions in the sliding groove 132. It acts as a blockage for the first inlet pipe 1 or the second inlet pipe 2, so that it can adapt to the distance between the first inlet pipe 1 and the second inlet pipe 2 when the distance between them changes, making it convenient to use; by setting a flushing pipe 121 on the temporary storage hopper 12, and setting a matching storage bag 28 and connecting hose 29, and a solenoid valve 30 is set on the connecting hose 29, when the solenoid valve 30 is opened, the flushing liquid flows from the storage bag 28 into the flushing pipe 121 through the connecting hose 29 under the action of gravity, and then flows into the conduit 3, thereby diluting the residual medicine in the pipe, so that when using different medicines, it is not necessary to manually clean the residual medicine in the pipe.

[0056] It should be noted that, in this document, terms such as "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0057] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dual-headed infusion set for hepatobiliary surgery, comprising a first inlet tube (1), a second inlet tube (2), and a catheter (3), wherein the first inlet tube (1), the second inlet tube (2), and the catheter (3) are connected by a three-way connector (4), and a drip chamber (5) is connected to the catheter (3), characterized in that, Also include: Temporary storage hopper (12), the temporary storage hopper (12) is equipped with two, and two temporary storage hopper (12) is communicated with first liquid inlet pipe (1) and second liquid inlet pipe (2) respectively; Detection assembly, the detection assembly is installed on the outer surface of the drop bucket (5) and the temporary storage hopper (12), and the detection assembly is used to detect the liquid level change in the drop bucket (5) and the temporary storage hopper (12); Control mechanism, the control mechanism is arranged above the temporary storage hopper (12), the control mechanism includes control assembly and stop component, and the control assembly and stop component are installed on the control box (13), the stop component has two states of stop and open, so that the liquid in the first liquid inlet pipe (1) or the second liquid inlet pipe (2) is blocked or flows, the control assembly is used to switch the state of the stop component, so that the stop component is switched from the stop state to the open state; The main control unit is arranged in the control box (13), and the control mechanism and the detection assembly are electrically connected with the main control unit, when the detection assembly detects the liquid level change in the drop bucket (5) and the temporary storage hopper (12), the main control unit drives the control mechanism to act, so that the stop component is switched to the open state.

2. The dual head infusion set according to claim 1, wherein: The detection assembly includes a first liquid level sensor (25) and a second liquid level sensor (26), the first liquid level sensor (25) is installed on the outer surface of the temporary storage hopper (12) on the first liquid inlet pipe (1), and the second liquid level sensor (26) is installed on the outer surface of the temporary storage hopper (12) on the second liquid inlet pipe (2); The detection assembly further includes a third liquid level sensor (27) installed on the outer surface of the drop bucket (5).

3. The hepatobiliary double-head infusion set according to claim 2, characterized in that: The temporary storage hopper (12) is provided with a flushing pipe (121), and a liquid storage bag (28) is arranged above the temporary storage hopper (12), and the flushing pipe (121) and the liquid storage bag (28) are communicated through a connecting hose (29); The connecting hose (29) is provided with a solenoid valve (30), the solenoid valve (30) is electrically connected with the main control unit, and the solenoid valve (30) is used to control the connection of the connecting hose (29).

4. The dual head infusion set according to claim 1, wherein: The control assembly includes a guide rod (16) vertically arranged in the control box (13), a support plate (15) is slidably arranged on the guide rod (16), a spring (17) is arranged between the support plate (15) and the bottom surface of the inner wall of the control box (13), and the spring (17) is sleeved on the outer surface of the guide rod (16); The surface of the guide rod (16) away from the spring (17) is fixedly provided with a detent (18), and the detent (18) is provided with at least one; The surface of the guide rod (16) away from the spring (17) is fixedly provided with a lower end electromagnet (23), and the top surface of the inner wall of the control box (13) is fixedly provided with an upper end electromagnet (22), the upper end electromagnet (22) and the lower end electromagnet (23) are electrically connected with the control unit, and the upper end electromagnet (22) and the lower end electromagnet (23) can be attracted or repelled after being electrified.

5. The hepatobiliary double-head infusion set according to claim 4, characterized in that: The control box (13) is provided with an opening (131) on the surface near the first liquid inlet pipe (1) and the second liquid inlet pipe (2), and the opening (131) is located on the side away from the upper end electromagnet (22) in height; The control box (13) is provided with an insertion hole (133) on the surface on the same side as the opening (131), and the position and number of the insertion hole (133) correspond to the clamping members (18) one by one; The stop component is installed in the opening (131), and the stop component comprises: A sliding shaft (21) is provided with a boss (211) at both ends, and the upper side and the lower side of the opening (131) are provided with a sliding groove (132), and the boss (211) slides in the sliding groove (132); A constraint block (20) is rotatably installed on the outer surface of the sliding shaft (21), and the constraint block (20) is provided with a constraint hole (201); The stop clamp (14) is in the form of " " and the first liquid inlet pipe (1) or the second liquid inlet pipe (2) is in the recess of the stop clamp (14), the stop clamp (14) has a sliding end and an insertion end, and the sliding end and the insertion end have a height difference, the sliding end of the stop clamp (14) slides in the constraint hole (201), and the insertion end of the stop clamp (14) can enter the insertion hole (133) and be limited by the clamping member (18) to block the liquid flow of the first liquid inlet pipe (1) or the second liquid inlet pipe (2), at this time, the stop component is in the stop state.

6. The hepatobiliary double-head infusion set according to claim 5, characterized in that: The control assembly further comprises a spring sheet (19) fixedly arranged in the control box (13), and the position and number of the spring sheet (19) correspond to the clamping members (18) one by one, so that when the stop component is in the stop state, the insertion end of the stop clamp (14) contacts the spring sheet (19) and is subjected to the force of the spring sheet (19).

7. The dual head infusion set according to claim 6, wherein: The control mechanism is symmetrically arranged in the control box (13).

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